Hydraulic riveting-machine



(No Model.)

y W. R. WEBSTER. HYDRAULIC R V-ETIN 1220mm"..-

' No. 292,521. Patented T211 29, 1884.

c 0L 2? 5 E fi a. j a? z -W|TNESSES= INVENTOR 2 an a.

. UNITED STATES I PATENT OFFICE.

WILLIAM R. WEBSTER, OF ATHENs, PENNSYLVANIA.

HYDRAULIC RIVET ING-MACHINEQ SPECIFICATION forming part of Letters Patent No. 292,521, dated January 29. 1884.

- Application filed August 29,1883. (No model.)

To all whom it may concern Be itknown that 1, WILLIAM R. WEBsTER, a citizen of the United States, and a resident of Athens, Bradford county, Pennsylvania, have invented a new and useful Improvement in Hydraulic Riveting-Machines, of which the following is a specification.

The object of my invention is to furnish a direct-acting hydraulic riveting-machine havthe same power at all points of its stroke, and

which will not require an accumulator or a pipe for the exhaust-liquid, and which will be simple and inexpensive in its construction and free from the leaks, &c., to which draulic riveters are subject.

. In the accompanying drawings, forming part of this specification, Figure 1 represents partly a side view and partly a vertical central section of my invention; and Fig. 2 represents a perspective view of the sleeve which surrounds the lower part of the rivet-snap.

A represents the air or steam cylinder, furnished withports c d for the introduction of compressed air or steam, and with a piston,

B, the rod 0 of which works in a cylinder, D, containing some hydraulic liquid, and forms a plunger for compressing this liquid.

E is the cylinder in which the plunger F, which forms the head of the rivet, works. These cylinders D and E are preferably cast in one piece with the yoke G, (to which the cylinderAis bolted,) and are afterward bored out and, if necessary, lined with brasses a b.

The'rivet set or snap H is screwed into the plunger F, and is surrounded with a spring, I, one end of which is secured to the plunger and the other to a sleeve, M, which holds the work together while being riveted.

N is the dolly, which is secured to the yoke other by G, and O-represents the plates being operated 40 upon.

P is a reservoir on top of the cylinder E, which is filled with a hydraulic liquid to replace any that may have escaped inrrany man ner from the cylinder D or E. I

It is a screw which passes through the cylinder-head of E, which upon being loosened will allow the liquid to pass from P to E or D.

In operating my invention air or steam is admittedto the cylinder A'through the port c 0' and drives the piston B forward, compressing the liquid in the cylinders D-and E and driving the plunger F down. The rivet is placed with its head in the dolly, as shown, and the sleeve M comes against the work and 5 5 holds it together. The spring I is now compressed and the snap comes against the rivet and forms the head. After the head of the rivet is formed, the air or steam is admitted to the cylinder A through the port d, and the Uu plungers O and F are returned to their first positions. I

Having thus described my invenion, I claim anddesire to secure by Letters Patent 1. The herein-described direct-acting riveting-machine, consisting of the cylinders A,

D, and E, plungers O and F, and snap H, all arranged and-operating" substantially as and for the purposes set forth.

2. The herein-described device for holding the work firmly while being riveted, consist= ing of the spring I and sleeve M, substantially as set forth.

\VILLIAM R. WEBSTER. 

